What are the main antigen-presenting cells in the body?
A. Macrophages
B. Helper T cells
C. Neutrophils
D. Fibroblasts
E. Plasma cells
Answer: A
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The neural arch is formed by the
A. two pedicles and two laminae. B. two pedicles, two laminae, and body. C. two pedicles and body. D. two laminae and body.
An important characteristic of urine is its specific gravity or density, which is ________.
A) 1.041-1.073 B) 1.001-1.035 C) 1.030-1.040 D) 1.000-1.015
Answer the following statements true (T) or false (F)
1. One of the end products of the citric acid cycle is carbon dioxide. 2. One of the end products of the citric acid cycle is ADP. 3. All of the processes in carbohydrate catabolism require oxygen. 4. The end products of both glycolysis and the citric acid cycle are heat and high-energy electrons. 5. Although glucose is the cell’s first choice as an energy source, it cannot use glucose directly.
The figure illustrates a lateral view muscles of the head and neck. Which muscle is indicated by "A"?
A. Sternocleidomastoid B. Trapezius C. Temporalis D. Orbicularis oculi E. Masseter